On Volkswagen and the wider VAG group (Audi, Škoda, SEAT), fault 01495 means the onboard supply control module has flagged the left high-beam headlamp circuit as open or shorted to battery positive (B+). It is a VW-specific code you read with VCDS, and it typically shows up as a dead left main beam on cars like the Golf, Jetta, Passat or Tiguan.
Part of the generic 01495 overview — this page covers the Volkswagen meaning specifically.
What 01495 means
VW routes the left high-beam bulb through a switched output inside the onboard supply control module (the BCM, module 09) — or the headlight range/AFS control unit on cars with adaptive or xenon lighting. That output watches bulb current continuously. If it sees no current (open circuit: a blown bulb, unplugged holder or broken wire) or current being pulled toward B+ (short to positive), it stores 01495 and normally shuts the left main beam down. Because it is a manufacturer code, a generic OBD-II scanner won't see it — you need VCDS or ODIS to read and clear it.
Symptoms
- Left high beam is dead while the right one still lights when you pull the stalk for main beam or flash-to-pass
- A lighting/bulb warning appears in the VW cluster or MMI/driver display, sometimes naming the left main beam
- On some VWs the module cuts both high beams after repeated faults, even though only the left circuit is the problem
- Fault comes back after clearing it with VCDS once the lights are cycled or the car sits overnight in damp weather
- Flickering or an on-and-off left high beam that responds to tapping the headlight or moving the harness
Common causes
- Blown or worn-out left high-beam bulb — on most VW models a plug-in H7 halogen around 55 W
- Melted or corroded H7 bulb-holder connector behind the headlight, a very common VW failure from bulb heat
- Moisture or condensation inside the headlight unit corroding the socket and pins
- LED or wrong-wattage bulb swap that the VW module reads as too little load (open circuit / canbus load error)
- Chafed or pinched wiring between the onboard supply control module and the headlamp, often near the bumper/lock carrier
- Poor or corroded headlight ground causing an unstable circuit the BCM flags
- Failed output stage inside the onboard supply control module or AFS/headlight range control unit
Diagnostic approach
- Scan the car with VCDS or ODIS — Connect VCDS and read the onboard supply control module (address 09); on adaptive-light VWs also check the headlight range control units (55/5D). Confirm 01495 and whether it is stored static or intermittent, and read the freeze-frame. This is a VW-specific code, so a generic reader plugged into the Golf/Passat OBD port won't display it.
- Note open vs short-to-B+ — The VCDS fault text says whether the circuit is 'open' or 'short to positive.' Open steers you toward a dead bulb, disconnected holder or broken supply wire; short to B+ steers you toward the control wire seeing battery voltage — usually rubbed-through insulation or a heat-bridged connector. Let that wording decide where you probe.
- Pull and test the left high-beam bulb — On most VWs the high beam is an H7 (~55 W); remove it and check the filament for continuity with a meter — a broken filament reads open. Make sure a genuine H7 of the correct wattage is fitted, because an LED conversion or under-spec bulb draws too little current and the VW module logs it as an open circuit even when it appears to light.
- Check the connector and headlight for heat and water — Inspect the bulb-holder plug for browned, melted or spread terminals — a classic VW high-beam fault — and look for fogging or standing water inside the housing. If the connector is heat-damaged, fit a new bulb-holder pigtail; if the housing is wet, dry and reseal it, since corrosion at the socket keeps re-triggering 01495.
- Measure the supply, ground and control wires — With the plug off, verify a clean headlight ground, then command the left high beam on in VCDS output tests (or switch it on) and confirm the module's switched output reaches the bulb. Check the control wire does NOT carry B+ when the beam should be off — battery voltage present with the lamp commanded off is the short-to-B+ that sets 01495.
- Rule the module in only last — If a known-good H7, a clean connector, a good ground and intact wiring all check out, the remaining suspect is the low-side output stage inside the onboard supply control module (or AFS unit). Clear 01495, cycle the high beam several times, and re-scan; a code that returns instantly under those conditions means the module needs repair or replacement and re-coding with VCDS/ODIS.
FAQ
Which VW models throw fault 01495?
It can appear on any VAG car that uses the onboard supply control module to switch the high beam — commonly Golf, Jetta, Passat, Tiguan and related Audi/Škoda/SEAT models. The bulb type and headlight design vary by model and year, but the underlying left-main-beam open/short-to-B+ logic is shared across the group.
Will fitting LED bulbs to my Golf cause 01495?
Very likely. VW's lighting control expects halogen (H7) load, and an LED retrofit draws far less current, so the module reads it as an open circuit and stores 01495 even though the LED lights. Unless you use a factory-approved LED system with proper coding, going back to a correct H7 is the reliable fix.
Do I need VCDS, or will a cheap scanner work?
You need VCDS, ODIS or another VW/Audi-capable tool. 01495 lives in the onboard supply/BCM (module 09), which generic OBD-II readers can't access — they only see emissions P-codes. VCDS is also what you use to read the open-vs-short detail and to clear the code after the repair.
The connector behind my headlight looks melted — is that the cause?
Yes, that's a frequent VW cause. Heat from the H7 bulb cooks the holder connector, raising resistance and breaking contact, which the module reads as an open circuit and logs as 01495. Replacing just the bulb won't fix it — fit a new bulb-holder connector or pigtail and clean the terminals.
Can I ignore 01495 if the low beams still work?
You can drive on dipped beam, but you shouldn't leave it. A dead high beam reduces how far ahead you can see on unlit roads and can make the car fail a lighting inspection. It's an easy, inexpensive fix in most cases, so it's worth sorting rather than living with a half-working main beam.